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The heat capacity of Hydrogen may be represented by Cp= (1.554 + 0.0022 T) J/Kmol. Compute the entropy changes for the system, surroundings and the universe for the (a) reversible heating, as well as (b) irreversible heating of 1.0 mole of hydrogen from 300K to 600K. In (b) presume the surroundings to be at 600 K.
If the coal is burned in a power plant that uses 1800 tons of coal per day, what mass of calcium oxide is required daily to eliminate the sulfur dioxide?
How much heat is emitted when 4.55 of water condenses at 25 ? The heat of vaporization of water at 25 is 44.0.
p4s f2g -gt pf3g what mass of f2 is needed to produce 187 g of pf3 if the reaction has a 80.1
In a laboratory class one student group found that 26.6% of A had isomerised after a period of 15.0 minutes when the temperature was maintained at 84.5 °C. What is the half-life in minutes of substance A at that temperature
Chlorine gas can be formed commercially by passing an electric current through a concentrated solution of sodium chloride Brine. The unbalanced equation is NaCl(aq)+H2O(l)=NaOH(aq) + Cl2(g)+H2(g). Explain if the brine contains 430 g of NaCl how mu..
Give the structure that corresponds to the following molecular formula and 1H NMR spectrum
The compound dichlororodifluoromethane (CCl2F2) has a normal boiling point of -30C, a critical temperature of 112C, also a corresponding critical temperature of 40 atm. If the gas is compressed to 18atm at 20C, will the gas condense Why if so
A 35.00 mL solution of 0.2500 M HF is titrated with a standardized 0.1356 M solution of NaOH at 25 C.
what is the energy of a single UV photon and a mole of UV photons having a wavelength of 25 nm?
how many moles of na2s2o3 react with each mole of kio3 used in the standrdization? what is the oxidition state of a cl in ocl- ,and s in na2s2O3?
The standard enthalpy of formation of gaseous H2O at 298 K is -241.82 kJ mol-1. Estimate its value at 75 °C given the following values of the molar heat capacities at constant pressure:
Anthraquinone contains only carbon, hydrogen and oxygen as well as has an empirical formula of C2H4O.The freezing point of camphor is lowered by 22.3C when 1.32g anthraquinone is disolved in 11.4g camphor. Find out the molecular formula of anthraq..
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